Temporary cover for books and similar articles



(-No Model.)

E. J. TRUM.

TEMPORARY COVER FOR BOOKS AND SIMILAR ARTICLES. No. 324,791.

Patented Au.

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' Y UNIT D diaries EMANUEL J. TRUM, OF BROOKLYN, NE\V YORK.

TEMPORARY COVER FOR BOOKS AND SIMILAR ARTICLES.

SPECIFICATION forming part 01' Letters Patent No. 32 4,791, dated August18, 1885.

(N0 m -del To all whom it may concern:

Be it known that I, EMANUEL J. TRUM, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented a new and useful Temporary Cover for Books and SimilarArticles, of which the following is a specification.

This invention relates to temporary covers for blank memorandum books,cash-sales checks, and other similar blank or partiallyprinted books orpackets of paper, which are manufactured and sold without a cover orback.

The object of the present invention is to provide improved means wherebythe book or packet of connected leaves or sheets, as ordinarilymanufactured, can be easily and securely attached to the back or cover.

The invention consists of a clasp made of metal or other suitablematerial, open on one side for the insertion of the back of the book,and having its top and bottom parts, which. clasp the sides of the book,adjacent to and parallel to the back, provided with parallel curvesextending the entire length of the clasp, so that when the back of thebook or packet is inserted the part of the book entered in the claspwill be bent or curved parallel to the curvature of the clasp, andthereby be so securely held as to resist pulling out when drawnlengthwise of the hook, and also be prevented from sagging.

In the accompanying drawings, Figure 1 represents in perspectiveabook-cover provided with my improved clasp, and abook fastened in thecover by the said clasp. Fig. 2 is a section of the same, taken on line00 on. Fig. 3 is a perspective view of the clasp. Fig. 4 represents theaction of the clasp when the book or package is drawn lengthwise or atright angles to the clasp.

Referring to the drawings, A represents the unbound book or packet,which is manufactured and sold, as shown-that is, without covers, andwith the back a formed by stitching or pasting the sheets of papertogether. B B are the sides of a removable cover for the said of one ofthe sides 13, parallel and close to the flexible back. The said clasp iscomposed of parallel curved top and bottom parts, b b, connecting-web d,and a plate, 6, projecting from the bottom part, b, which plate lies onthe cover and is secured thereto by rivets or other suitable means. Thecurved bottom part, b, is free of the book-cover from the point wherethe curve commences. The parts b b are formed to about the samecurvature and parallel to each other, so as to form a curved cavity. Theobject of this is to bend the back of the book when inserted in theclasp, and by that means bend the paper where it passes under the claspat an angle to the surface of the book, which prevents a straight pullor drawing on any of the sheets of that part which passes into theclasp. In this way the bound end of the book is held entirely by thefriction produced by the bend given to it by the clasp instead of by apositive fastening, or when the back is thickened or otherwise arrangedfor fastening to the clasp. Furthermore, by this means, as the claspproperthat is, the curved parts-are not directly attached to the cover,a straight curvature of the bottom of the clasp. As a further security,and to prevent any possibility of the back slipping, burrs it may beformed on the surface of the clasp, which take hold of the paper, andform, in combination with the curved spring-clasp, a slightly-positivehold for the part of the book held in the clasp.

Instead of giving a curve to the bottom part of the clasp, it may bemade flat and a halfround strip of wood or other suitable material maybe laid lengthwise of the clasp and fastened to the bottom part.

It will be seen that one of the great advantages of this clasp is thatno specially-made book or package is required to give a hold to theclasp, as when pressed in the clasp that part between the top and bottomis forced to conform to the shape of those parts, and any such article,made in the ordinary manne can be placed in and held by the'clasp, itbeing only necessary to place sufficient sheets of paper together tofill the space in the clasp sufficiently to be curved into the describedform. Nor is it necessary that the sheets or leaves should be stitchedtogether, as a package of loose sheetsput together so'as to form astraight back may be equally Well held by the clasp.

I claim 1 1. In a temporary cover for books and similar articles, aclasp having its top and bottom parts formed into parallel curvesextending the Whole length of the clasp, substantially as specified.

2. A clasp for temporary covers having its top and bottom, between whichthe back of the book isheld, formed'into parallel curves extending theWhole length of the clasp, and

EMANUEL J. TRUM.

WVitnesses:

- MILLARD R. J ONES, J ULIUs REHWOLDT.

